CVE-2020-5917 Weak cryptography in BIG-IP, BIG-IQ
F5 BIG-IP and BIG-IQ devices use OpenSSH keys shorter than 2048 bits, weakening cryptographic security and potentially allowing bypass of encryption protections.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5917?
CVE-2020-5917 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 26 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.2 and BIG-IQ versions 5.2.0-7.0.0, the host OpenSSH servers utilize keys of less than 2048 bits which are no longer considered secure.
Weakness: CWE-326
Which versions are affected by CVE-2020-5917?
It affects 12 products.
Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Domain Name System and 6 more.
How do I fix CVE-2020-5917?
No fix has been published for CVE-2020-5917 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-5917 being exploited?
There is no known exploitation of CVE-2020-5917 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Access Policy Manager
- CVE-2023-46747 F5 BIG-IP Configuration Utility Authentication Bypass
- CVE-2022-1388 F5 BIG-IP Missing Authentication
- CVE-2021-22986 F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution
- CVE-2021-22991 F5 BIG-IP Traffic Management Microkernel Buffer Overflow
- CVE-2020-5902 F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution
Sources
Also known as GHSA-cmh5-694m-8mqv.